Process to prepare in-situ pilings in clay soil
CA 2570265 C · Owner: Gunther, Johan M. · Inventors: Gunther, Johan M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of forming in-situ pilings in clay soil. An auger stirrer is rotatably and axially forced into the ground. Water dry binder (cement/or , lime), and air are injected to lubricate the tool and liquify the mix of clay , soil, binder and air to form a uniform structure most of the air percolating , from the mix before it hardens.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 25, 2005 and granted March 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 25, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.